Elasticsearch indexer: uninitialized constant ElasticIndexerWorker::Client
https://sentry.gitlap.com/gitlab/gitlabcom/issues/8582/
NameError: uninitialized constant ElasticIndexerWorker::Client
app/workers/elastic_indexer_worker.rb:49:in `clear_project_indexes'
Client.delete_by_query({
app/workers/elastic_indexer_worker.rb:22:in `perform'
clear_project_indexes(record_id) if klass == Project
lib/gitlab/sidekiq_middleware/memory_killer.rb:17:in `call'
yield
lib/gitlab/sidekiq_middleware/arguments_logger.rb:6:in `call'
yield
lib/gitlab/metrics/sidekiq_middleware.rb:11:in `block in call'
trans.run { yield }
...
(25 additional frame(s) were not displayed)